CN105865774A - Large high-load ball joint tester - Google Patents

Large high-load ball joint tester Download PDF

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Publication number
CN105865774A
CN105865774A CN201610394677.7A CN201610394677A CN105865774A CN 105865774 A CN105865774 A CN 105865774A CN 201610394677 A CN201610394677 A CN 201610394677A CN 105865774 A CN105865774 A CN 105865774A
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China
Prior art keywords
oil
ball pivot
test
valve
pipe
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CN201610394677.7A
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Chinese (zh)
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CN105865774B (en
Inventor
任巍伟
陆忠泉
樊学峰
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ZHEJIANG CHANGSHENG SLIDING BEARING CO Ltd
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ZHEJIANG CHANGSHENG SLIDING BEARING CO Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention relates to a large high-load ball joint tester, which comprises a frame-type pressure bearing rack, wherein a horizontally arranged lifting working platform capable of lifting in the vertical direction is arranged on the frame-type pressure bearing rack, and the lifting working platform is connected with a loading lifting driving mechanism; two symmetrically arranged support ball joint seats with support ball joints inside are arranged on the lifting working platform, and a test ball joint seat with a test ball joint inside positioned between the two support ball joint seats is arranged on the inner top wall of the frame-type pressure bearing rack. The tester also comprises a test spindle which can be inserted into the support ball joints and the test ball joint and is circumferentially and fixedly connected with the support ball joints and the test ball joint, and the back end of the test spindle is connected with a swing arm; the swing arm is connected with a swing driving mechanism which can drive the swing arm to swing in the vertical direction so as to drive the test spindle to swing back and forth along the axis direction of the test spindle. The large high-load ball joint tester provided by the invention has the advantage of strong practicality.

Description

Large-scale top load ball pivot testing machine
Technical field
The invention belongs to testing machine technical field, relate to core steam generator support ball Hinge test, particularly relates to a kind of large-scale top load ball pivot testing machine.
Background technology
Large-scale ball pivot is wide in engineer applied scope, use bad environments, structural consequences are strong, Typically requiring oil-free lubrication, its important performance indexes need to be determined by simulation experiment.
Such as: core steam generator support ball pivot, its carrying is bigger than pressure, uses ring Border temperature is high, it is desirable to oil-free lubrication, it is ensured that 60 year service life, it is possible to reply earthquake etc. Geological disaster.As the critical component supported, test ball with greater need for Special test machine Hinge performance, it is ensured that ball pivot quality.
Testing equipment cannot simulate complex working condition in the past, and abroad uses substrate to mill test Merely show that ball pivot uses state to the coefficient of friction between flour milling to map ball pivot.This Plant way more unilateral, sphere carrying friction difference and planes carry friction, it is impossible to reaction sphere Hinge ensures safety coefficient use state in lower 60 years.Further, domestic there is no is specifically designed for The equipment of large-scale top load ball pivot checking test.
Summary of the invention
It is an object of the invention to for the problems referred to above, it is provided that one is adapted to multiple large-scale The large-scale top load ball pivot testing machine of the Work condition analogue experiment of top load ball pivot.
For reaching above-mentioned purpose, present invention employs following technical proposal: this large-scale height carries Lotus ball pivot testing machine includes frame pressure-bearing frame, is provided with level and sets in frame pressure-bearing frame Put and can vertical direction lifting self-powered platform, described self-powered platform with add Load lift drive mechanism connects, and is provided with two concentrics and arranges and interior on self-powered platform The support ball pivot seat supporting ball pivot can be installed by portion, and the inner roof wall in frame pressure-bearing frame sets Have support between ball pivot seat and inside at two can the test ball pivot of installation test ball pivot Seat, this testing machine also include inserting in described support ball pivot and test ball pivot and with institute That states supports ball pivot and the test main shaft of the test circumferentially fixed connection of ball pivot, at test main shaft Rear end connect and have a swing arm, described swing arm with can drive this swing arm in vertical plane Swing thus motoring ring test main shaft oscillates along the direction of axis line of test main shaft and moves Swing driving mechanism.
In above-mentioned large-scale top load ball pivot testing machine, described swing arm is rectangular-shaped And test main shaft is fixed on the middle part of swing arm by circumferential positioning structure.
In above-mentioned large-scale top load ball pivot testing machine, described swing driving mechanism bag Include four to be arranged in parallel and one end is respectively hinged at the oscillating oil cylinder in frame pressure-bearing frame, Connected by articulated structure in four corners of swing arm and have an oscillating oil cylinder, and be arranged on pendulum Two oscillating oil cylinder move toward one another of a pair linea angulata of arm, another cornerwise two swing oil Cylinder reverse motions, described oscillating oil cylinder is connected with swinging hydraulic system.
In above-mentioned large-scale top load ball pivot testing machine, described circumferential positioning structure bag Include the cross keyway being arranged on test rear-end of spindle, swing arm is provided with described in being stuck in Cross keyway in cross flat key, described swing arm is equipped with some and described Test rear-end of spindle connect securing member.
In above-mentioned large-scale top load ball pivot testing machine, described self-powered platform sets There is cooperation panel, be provided with locating slot coordinating on panel, described test ball when being used for installing The lower end of free bearing inserts in described locating slot;The inner roof wall of described frame pressure-bearing frame Being provided with horizontally disposed fixed plate, described test ball free bearing upper end is fixed under fixed plate Surface;It is provided with encoder at test front-end of spindle.
In above-mentioned large-scale top load ball pivot testing machine, described test ball free bearing sets Have some along testing the ball pivot equally distributed installing hole of circumference and being arranged in installing hole Electrically heated rod.
In above-mentioned large-scale top load ball pivot testing machine, described swing hydraulic system bag Including the first fuel tank, connecting on the first fuel tank has the first main oil pipe, on the first main oil pipe It is connected with the first oil pump, the first check valve and the first hydraulic electromagnetic change valve in turn, Connect on one hydraulic electromagnetic change valve and have the first oil circuit and the second oil circuit, four oscillating oil cylinders It is arranged in parallel and is connected with the first oil circuit and the second oil circuit respectively, the first described main oil pipe On be also associated with the first oil return pipe of being connected with the first fuel tank, be connected at the first oil return pipe One end of first main oil pipe is sequentially provided with two first cut-offs to the other end of the first oil return pipe Valve and an overflow valve, connect on any one first stop valve and have the first Voltage force to pass Sensor, the first described main oil pipe is also associated with hydraulic oil cooling body.
In above-mentioned large-scale top load ball pivot testing machine, described hydraulic oil cooling body Including being connected to the cooling tube of the first main oil pipe, cooling tube connects and has counterbalance valve and liquid Force feed cooling fan, described cooling tube outfan and the 3rd fuel tank connect.
In above-mentioned large-scale top load ball pivot testing machine, described loading elevator drive machine Structure includes the large-scale load cylinder being fixed in frame pressure-bearing frame, described large-scale loading Cylinder piston rod is connected with self-powered platform, self-powered platform and large-scale load cylinder it Between be provided with guide frame;Described large-scale load cylinder is connected with hydraulic loading system.
In above-mentioned large-scale top load ball pivot testing machine, described hydraulic loading system bag Including the second fuel tank, connecting on the second fuel tank has the second main oil pipe, on the second main oil pipe It is sequentially provided with second pump housing, the second check valve and the second hydraulic electromagnetic change valve, second Connect on main oil pipe and have the oil return mechanism being connected with the second fuel tank, change at the second hydraulic electromagnetic On valve connect have oil inlet pipe and oil return pipe, described oil inlet pipe and oil return pipe respectively with greatly Type load cylinder connects, and connecting on oil inlet pipe has hydraulic control one-way valve and one-way throttle valve, The oil being also associated with on oil inlet pipe between hydraulic control one-way valve and one-way throttle valve Road, connects on an oil circuit and has four the second stop valves, at any one the second stop valve Upper connection has the second electric pressure sensor, residue three the second stop valves in any one On individual second stop valve connect have oil gauge, residue two the second stop valves in any Connect on one the second stop valve and have accumulator, described oil return pipe is also associated with overflow Structure.
Compared with prior art, the advantage of this large-scale top load ball pivot testing machine is:
1, design is more reasonable, according to the testing machine model machine of program trial-production, is adapted to many Plant the Work condition analogue experiment of large-scale top load ball pivot.
2, due to test ball pivot force structure, and the layout of oscillating oil cylinder, solve height Load such as waves at the difficult problem;Owing to test ball free bearing is mounted with electrically heated rod, and thermometric thermoelectricity Even, observable record ball pivot test temperature and carry out specific hot test.
3, it is mounted with electric pressure sensor due to hydraulic system, loading oil pressure can be recorded in real time, And swing oil pressure, thus conversion draws real-time coefficient of friction.
4, can change more quickly due to self-powered platform and test main shaft, can meet The test of multiple ball pivot.
5, owing to being configured with computer software monitoring control system, it is possible to omnidistance to experimentation Curvilinear style record, preserves important tests data.
6, simple in construction and easily fabricated, practical.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention provides.
Fig. 2 is another viewing angle constructions schematic diagram that the present invention provides.
Fig. 3 is the structural representation of the swing hydraulic system that the present invention provides.
Fig. 4 is the test main axle structure schematic diagram that the present invention provides.
Fig. 5 is the swing arm structure schematic diagram that the present invention provides.
Fig. 6 is the hydraulic loading system structural representation that the present invention provides.
In figure, frame pressure-bearing frame 1, self-powered platform 11, support ball pivot seat 12, examination Test ball pivot seat 13, coordinate panel 14, fixed plate 15, electrically heated rod 16, loading lifting Drive mechanism 2, large-scale load cylinder 21, hydraulic loading system the 22, second fuel tank 22a, Second main oil pipe 22b, the second pump housing 22c, the second check valve 22d, the second hydraulic electromagnetic Reversal valve 22e, oil return mechanism 22f, oil inlet pipe 22g, oil return pipe 22h, fluid-control one-way Valve 22j, one-way throttle valve 22k, an oil circuit 22q, the second stop valve 22w, the second electricity Pressure transducer 22r, oil gauge 22t, accumulator 22y, flow structure 22u, second Liquid level meter 22p, the second oil filler 22z, the second oil filter 22x, test main shaft 3, ten Font keyway 31, swing arm 4, cross flat key 41, swing driving mechanism 5, swing oil Cylinder 51, swing hydraulic system the 52, first fuel tank 52a, the first main oil pipe 52b, first Oil pump 52c, the first check valve 52d, the first hydraulic electromagnetic change valve 52e, the first oil circuit 52f, the second oil circuit 52g, the first oil return pipe 52h, the first stop valve 52j, overflow valve 52k, the first electric pressure sensor 52v, cooling tube 52w, counterbalance valve 52r, hydraulic oil Cooling fan 52t, the 3rd fuel tank 52y, the first liquid level meter 52p, the first oil filler 52s, Second oil filter 52z, support ball pivot a, test ball pivot b.
Detailed description of the invention
The following is the specific embodiment of invention and combine accompanying drawing, to technical scheme It is further described, but the present invention is not limited to these embodiments.
As shown in Figure 1-2, this large-scale top load ball pivot testing machine includes frame pressure-bearing frame 1, frame pressure-bearing frame 1 is provided with the liter being horizontally disposed with and can lifting at vertical direction Fall workbench 11, self-powered platform 11 is fixed on frame by Detachable connection structure and holds On press frame 1, described self-powered platform 11 is connected with loading lift drive mechanism 2. Specifically, this loading lift drive mechanism 2 includes being fixed in frame pressure-bearing frame 1 Large-scale load cylinder 21, frame pressure-bearing frame 1 combines large-scale load cylinder 21, it is ensured that add Loading capability can reach 1000T.Described large-scale load cylinder 21 piston rod and lifting work Platform 11 connects, and is provided with guiding knot between self-powered platform 11 and large-scale load cylinder 21 Structure, guide frame includes some leads being connected on self-powered platform 11, large-scale Load cylinder 21 outer wall is provided with some Yu described lead cantilever portion one to one, The pilot hole inserted in for described lead it is respectively equipped with in each cantilever portion;Described is big Type load cylinder 21 is connected with hydraulic loading system 22.
Secondly, as it is shown on figure 3, hydraulic loading system 22 includes the second fuel tank 22a, On second fuel tank 22a, connection has the second main oil pipe 22b, also connects on the second fuel tank 22a It is connected to the second liquid level meter 22p and the second oil filler 22z.Second main oil pipe 22b depends on Secondary it is provided with the second pump housing 22c, the second check valve 22d and the second hydraulic electromagnetic change valve 22e, Being also associated with the second oil filter 22x on the second main oil pipe 22b, oil is by the first oil filter 22x enters the second pump housing 22c after filtering, and connecting on the second main oil pipe 22b has and second Oil return mechanism 22f, this oil return mechanism 22f that fuel tank 22a connects include return duct, Return duct is provided with shutoff valve and flow spill valve.
Second hydraulic electromagnetic change valve 22e connects and has oil inlet pipe 22g and oil return pipe 22h, described oil inlet pipe 22g and oil return pipe 22h are respectively with large-scale load cylinder 21 even Connecing, connecting on oil inlet pipe 22g has hydraulic control one-way valve 22j and one-way throttle valve 22k, Oil inlet pipe 22g is also associated be positioned at hydraulic control one-way valve 22j and one-way throttle valve 22k Between oil circuit 22q, an oil circuit 22q connects and has four the second stop valve 22w, Any one second stop valve 22w connects and has the second electric pressure sensor 22r, the Two electric pressure sensor 22r can record the oil pressure of oscillating oil cylinder, thus converses in real time Friction factor value, residue three the second stop valve 22w in any one second section Only on valve 22w, connection has oil gauge 22t, in two the second stop valve 22w of residue On any one second stop valve 22w, connection has accumulator 22y, an oil circuit 22q output End is connected with oil box, and described oil return pipe 22h is also associated with flow structure 22u. Flow structure 22u includes overflow body and the overflow valve body being connected on overflow body, overflows Flow tube body outfan connects collection fuel tank.Electric pressure sensor, can record loading in real time Oil pressure.
In above-mentioned hydraulic loading system 22, the second pump housing 22c work, and open the Two hydraulic electromagnetic change valve 22e make large-scale load cylinder 21 rise, and arrive after setting pressure, Close the second hydraulic electromagnetic change valve 22e, the second pump housing 22c to quit work, hydraulic control list Being obstructed state to valve 22j, accumulator 22y can keep pressure slowly to decline oil circuit and valve Between have a small amount of leakage that pressure can be caused to decline.Second electric pressure sensor 22r detection Oil pressure, when pressure drops to setting value, starts the second pump housing 22c, and opens again Two hydraulic electromagnetic change valve 22e make load cylinder rise.And constantly repeat, it is achieved pressurize.
As shown in Figure 1-2, self-powered platform 11 is provided with two concentrics to arrange and interior The support ball pivot seat 12 supporting ball pivot a can be installed by portion, in frame pressure-bearing frame 1 Roof is provided with between two support ball pivot seats 12 and inside can installation test ball pivot b Test ball free bearing 13, support ball pivot a structure with test ball pivot b structure identical and All include ball pivot outer ring and the ball pivot inner ring being arranged in ball pivot outer ring, it is ensured that coefficient of friction Concordance, thus relatively accurately calculate test ball pivot coefficient of friction.This testing machine also includes energy Enough insert in described support ball pivot a and test ball pivot b in and with described support ball pivot a and The test main shaft 3 of the test circumferentially fixed connection of ball pivot b, in the rear end of test main shaft 3 even It is connected to swing arm 4, is provided with encoder 32 in test main shaft 3 front end, is used for measuring angle of oscillation Degree and speed, be controlled swing.Described swing arm 4 with can drive this swing arm 4 In vertical plane swing thus motoring ring test main shaft 3 along test main shaft 3 axial line side To the swing driving mechanism 5 of oscillating motion back and forth.Owing to steaming during simulation ball pivot use Vapour generator expands with heat and contract with cold and is subjected to displacement change and makes ball pivot slowly, low-angle swing.
Secondly, self-powered platform 11 is provided with cooperation panel 14, is coordinating panel 14 Being provided with locating slot, in time installing, the lower end of described test ball free bearing 13 inserts in described In locating slot;The inner roof wall of frame pressure-bearing frame 1 is provided with horizontally disposed fixed plate 15, Described test ball free bearing 13 upper end is fixed on fixed plate 15 lower surface;It addition, in examination Test ball pivot seat 13 be provided with some along test ball pivot b circumference equally distributed installing hole and The electrically heated rod 16 being arranged in installing hole.Electrically heated rod 16 observable record ball pivot tries Test temperature and carry out specific hot test.
Prioritization scheme, the swing arm 4 of the present embodiment is passed through in rectangular-shaped and test main shaft 3 Circumferential positioning structure is fixed on the middle part of swing arm 4.As shown in Fig. 2 and Fig. 4-5, this week The cross keyway 31 being arranged on test main shaft 3 rear end is included, in swing arm to location structure 4 are provided with the cross flat key 41 being stuck in described cross keyway 31, described The securing member that some with described test main shaft 3 rear end is connected it is equipped with in swing arm 4.
Secondly, as in figure 2 it is shown, swing driving mechanism 5 includes that four are arranged in parallel and one End is respectively hinged at the oscillating oil cylinder 51 in frame pressure-bearing frame 1, at four of swing arm 4 Corner is connected by articulated structure an oscillating oil cylinder 51, and is arranged on swing arm 4 pair of horns Two oscillating oil cylinder 51 move toward one another of line, another cornerwise two oscillating oil cylinders 51 Reverse motions, four oscillating oil cylinders, along the tangential direction layout of swing arm, drive swing arm to drive Test axle does the reciprocating rotation along axis, and driving force is big, stable movement.Described swing Oil cylinder 51 is connected with swinging hydraulic system 52.As shown in Figure 6, swing hydraulic pressure here System 52 includes the first fuel tank 52a, and connecting on the first fuel tank 52a has the first main oil pipe 52b, is connected with the first oil pump 52c, the first check valve on the first main oil pipe 52b in turn 52d and the first hydraulic electromagnetic change valve 52e, connects on the first hydraulic electromagnetic change valve 52e Be connected to the first oil circuit 52f and the second oil circuit 52g, four oscillating oil cylinders 51 be arranged in parallel and It is connected with the first oil circuit 52f and the second oil circuit 52g respectively, the first described main oil pipe 52b On be also associated with the first oil return pipe 52h of being connected with the first fuel tank 52a, in the first oil return Pipe 52h is connected to the one end other end to the first oil return pipe 52h of the first main oil pipe 52b Be sequentially provided with two a first stop valve 52j and overflow valve 52k, any one On one stop valve 52j, connection has the first electric pressure sensor 52v, the total oil of described first Hydraulic oil cooling body it is also associated with on pipe 52b.
Hydraulic oil cooling body includes the cooling tube 52w being connected to the first main oil pipe 52b, Cooling tube 52w connects and has counterbalance valve 52r and hydraulic oil cooling fan 52t, described Cooling tube 52w outfan and the 3rd fuel tank 52y connect.Secondly, at the first fuel tank 52a On be also associated with the first liquid level meter 52p and the first oil filler 52s, at the first main oil pipe 52b On be also associated with entering the after oil is filtered by the second oil filter 52z, the second oil filter 52z One oil pump 52c.
First oil pump 52c works all the time, makes the first hydraulic electromagnetic change valve 52e discontinuity Commutation, makes regular release of oscillating oil cylinder 51 retract, drives swing arm to do oscillating motion. First electric pressure sensor 52v detection oil pressure also obtains oil pressure value, is finally converted into moment of torsion.
The hydraulic loading system 22 of the present embodiment and swing hydraulic system 52 and computer software Monitoring control system connects.Secondly, according to the testing machine model machine of program trial-production, permissible Adapt to the Work condition analogue experiment of multiple large-scale top load ball pivot.
The operation principle of the present embodiment is as follows:
First install in supporting ball pivot seat 12 and support ball pivot a, at test ball free bearing 13 Interior installation test ball pivot b, and support ball pivot seat 12 is fixed on self-powered platform 11, Test ball free bearing 13 is fixed on frame pressure-bearing frame 1 inner top, then will test main shaft 3 Insert in support ball pivot a and test ball pivot b, then carry out rolling test and load test.
Load the experimental test that lift drive mechanism 2 realizes loading, swing driving mechanism 5 Realize the rolling test of stipulated number.
Due to test ball pivot force structure, and the layout of oscillating oil cylinder, solve high load The difficult problem such as wave.Secondly, the comparable real coefficient of friction reacting ball pivot, deflection, Temperature rise affects, high-temperature behavior, service life etc..Large-scale top load ball pivot can be solved make By the duty tackling all kinds of complex working condition in the cycle.
Specific embodiment described herein is only to present invention spirit theory for example Bright.Those skilled in the art can be to described specific embodiment Make various amendment or supplement or use similar mode to substitute, but without departing from The spirit of the present invention or surmount scope defined in appended claims.

Claims (10)

1. one kind large-scale top load ball pivot testing machine, it is characterised in that include frame pressure-bearing Frame (1), is provided with on frame pressure-bearing frame (1) and is horizontally disposed with and can be in vertically side To the self-powered platform (11) of lifting, described self-powered platform (11) lifts with loading Drive mechanism (2) connects, and is provided with two concentrics and arranges on self-powered platform (11) And inside can install support ball pivot (a) support ball pivot seat (12), in frame pressure-bearing The inner roof wall of frame (1) is provided with and is positioned between two supports ball pivot seat (12) and internal energy The test ball free bearing (13) of enough installation tests ball pivot (b), this testing machine also includes can Insert in described support ball pivot (a) and test ball pivot (b) and with described support ball pivot (a) and the test main shaft (3) of test ball pivot (b) circumferentially fixed connection, main in test The rear end of axle (3) connects swing arm (4), described swing arm (4) with can drive this Swing arm (4) swings in vertical plane thus motoring ring test main shaft (3) is along test main shaft (3) direction of axis line oscillate motion swing driving mechanism (5).
Large-scale top load ball pivot testing machine the most according to claim 1, its feature exists In, described swing arm (4) is passed through circumferentially positioned in rectangular-shaped and test main shaft (3) Structure is fixed on the middle part of swing arm (4).
Large-scale top load ball pivot testing machine the most according to claim 2, its feature exists Include that four are arranged in parallel and one end is respectively articulated with in, described swing driving mechanism (5) Oscillating oil cylinder (51) on frame pressure-bearing frame (1), in four portions of swing arm (4) Connected by articulated structure and have an oscillating oil cylinder (51), and be arranged on swing arm (4) a pair Two oscillating oil cylinder (51) move toward one another of linea angulata, another cornerwise two swing oil Cylinder (51) reverse motions, described oscillating oil cylinder (51) and swing hydraulic system (52) Connect.
Large-scale top load ball pivot testing machine the most according to claim 2, its feature exists In, described circumferential positioning structure includes the cross being arranged on test main shaft (3) rear end Keyway (31), is provided with in swing arm (4) and can be stuck in described cross keyway (31) In cross flat key (41), described swing arm (4) is equipped with some with described The securing member that test main shaft (3) rear end connects.
Large-scale top load ball pivot testing machine the most according to claim 1, its feature exists In, described self-powered platform (11) is provided with cooperation panel (14), is coordinating panel (14) it is provided with locating slot, the lower end of described test ball free bearing (13) when being used for installing Insert in described locating slot;The inner roof wall of described frame pressure-bearing frame (1) is provided with water The flat fixed plate (15) arranged, described test ball free bearing (13) upper end is fixed on fixing Plate (15) lower surface;It is provided with encoder (32) in test main shaft (3) front end.
Large-scale top load ball pivot testing machine the most according to claim 1, its feature exists In, described test ball free bearing (13) is provided with some along test ball pivot (b) circumference Equally distributed installing hole and the electrically heated rod (16) being arranged in installing hole.
Large-scale top load ball pivot testing machine the most according to claim 3, its feature exists In, described swing hydraulic system (52) includes the first fuel tank (52a), at the first oil The upper connection of case (52a) has the first main oil pipe (52b), on the first main oil pipe (52b) It is connected with the first oil pump (52c), the first check valve (52d) and the first hydraulic electromagnetic in turn Reversal valve (52e), has the first oil circuit in the upper connection of the first hydraulic electromagnetic change valve (52e) (52f) He the second oil circuit (52g), four oscillating oil cylinders (51) are arranged in parallel and difference It is connected with the first oil circuit (52f) and the second oil circuit (52g), the first described main oil pipe (52b) the first oil return pipe (52h) being connected with the first fuel tank (52a) it is also associated with on, It is connected to one end of the first main oil pipe (52b) to first time at the first oil return pipe (52h) The other end of oil pipe (52h) is sequentially provided with two the first stop valves (52j) and one and overflows Stream valve (52k), has the first Voltage force in the upper connection of any one first stop valve (52j) Sensor (52v), described the first main oil pipe (52b) is also associated with hydraulic oil cooling Mechanism.
Large-scale top load ball pivot testing machine the most according to claim 7, its feature exists In, described hydraulic oil cooling body includes the cooling being connected to the first main oil pipe (52b) Pipe (52w), has counterbalance valve (52r) and hydraulic oil cold in the upper connection of cooling tube (52w) But fan (52t), described cooling tube (52w) outfan and the 3rd fuel tank (52y) Connect.
Large-scale top load ball pivot testing machine the most according to claim 1, its feature exists In, described loading lift drive mechanism (2) includes being fixed on frame pressure-bearing frame (1) On large-scale load cylinder (21), described large-scale load cylinder (21) piston rod and liter Fall workbench (11) connects, at self-powered platform (11) and large-scale load cylinder (21) Between be provided with guide frame;Described large-scale load cylinder (21) and hydraulic loading system (22) connect.
Large-scale top load ball pivot testing machine the most according to claim 9, its feature exists In, described hydraulic loading system (22) includes the second fuel tank (22a), at the second oil The upper connection of case (22a) has the second main oil pipe (22b), on the second main oil pipe (22b) It is sequentially provided with second pump housing (22c), the second check valve (22d) and the second hydraulic electromagnetic to change To valve (22e), have and the second fuel tank (22a) in the upper connection of the second main oil pipe (22b) The oil return mechanism (22f) connected, has in the upper connection of the second hydraulic electromagnetic change valve (22e) Oil inlet pipe (22g) and oil return pipe (22h), described oil inlet pipe (22g) and oil return pipe (22h) it is connected with large-scale load cylinder (21) respectively, oil inlet pipe (22g) connects It is connected to hydraulic control one-way valve (22j) and one-way throttle valve (22k), at oil inlet pipe (22g) On be also associated with being positioned between hydraulic control one-way valve (22j) and one-way throttle valve (22k) Prop up oil circuit (22q), have four the second stop valves (22w) in the upper connection of an oil circuit (22q), The second electric pressure sensor (22r) is had in the upper connection of any one second stop valve (22w), Any one second stop valve (22w) in three the second stop valves (22w) of residue Upper connection has oil gauge (22t), residue two the second stop valves (22w) in any One upper connection of the second stop valve (22w) has accumulator (22y), described oil return pipe (22h) On be also associated with flow structure (22u).
CN201610394677.7A 2016-06-06 2016-06-06 Large-scale top load ball pivot testing machine Active CN105865774B (en)

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DE102007010416A1 (en) * 2007-03-01 2008-09-04 Norbert Diener Testing device for controlling integrity of ball set in hinge shafts, has balls running on paths at inner circumference of joint socket and at outer circumference of hinge plate
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CN200965490Y (en) * 2006-06-16 2007-10-24 株洲时代新材料科技股份有限公司 Mechanical rubber ball hinge fatigue tester
CN200982933Y (en) * 2006-11-08 2007-11-28 株洲时代新材料科技股份有限公司 Fixture for rubber ball hinge three-direction load fatigue test
DE102007010416A1 (en) * 2007-03-01 2008-09-04 Norbert Diener Testing device for controlling integrity of ball set in hinge shafts, has balls running on paths at inner circumference of joint socket and at outer circumference of hinge plate
CN201177558Y (en) * 2008-04-08 2009-01-07 株洲时代新材料科技股份有限公司 Rubber ball hinge bidirectional loading fatigue test device
CN205670081U (en) * 2016-06-06 2016-11-02 浙江长盛滑动轴承股份有限公司 Large-scale top load ball pivot testing machine

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